port #9505 to master

gRPC-Core.podspec

@@ -870,13 +870,22 @@ Pod::Spec.new do |s|
 
   s.subspec 'Cronet-Implementation' do |ss|
     ss.header_mappings_dir = '.'
+
+    ss.dependency "#{s.name}/Interface", version
+    ss.dependency "#{s.name}/Implementation", version
+    ss.dependency "#{s.name}/Cronet-Interface", version
+
     ss.source_files = 'src/core/ext/transport/cronet/client/secure/cronet_channel_create.c',
-                      'src/core/ext/transport/cronet/transport/cronet_transport.c'
+                      'src/core/ext/transport/cronet/transport/cronet_transport.c',
+                      'third_party/Cronet/bidirectional_stream_c.h'
   end
 
   s.subspec 'Tests' do |ss|
     ss.header_mappings_dir = '.'
 
+    ss.dependency "#{s.name}/Interface", version
+    ss.dependency "#{s.name}/Implementation", version
+
     ss.source_files = 'test/core/end2end/cq_verifier.{c,h}',
                       'test/core/end2end/end2end_tests.{c,h}',
                       'test/core/end2end/end2end_test_utils.c',
@@ -886,7 +895,5 @@ Pod::Spec.new do |s|
                       'test/core/util/port.h',
                       'test/core/util/port_posix.c',
                       'test/core/util/port_server_client.{c,h}'
-
-    ss.dependency 'CronetFramework'
   end
 end

src/objective-c/GRPCClient/private/GRPCConnectivityMonitor.m

@@ -159,11 +159,13 @@ static void PassFlagsToContextInfoBlock(SCNetworkReachabilityRef target,
     if (strongSelf) {
       if (lossHandler && !flags.reachable) {
         lossHandler();
+#if TARGET_OS_IPHONE
       } else if (wifiStatusChangeHandler &&
                  strongSelf->_previousReachabilityFlags &&
                  (flags.isWWAN ^
                   strongSelf->_previousReachabilityFlags.isWWAN)) {
         wifiStatusChangeHandler();
+#endif
       }
       strongSelf->_previousReachabilityFlags = flags;
     }

templates/gRPC-Core.podspec.template

@@ -166,13 +166,22 @@
 
     s.subspec 'Cronet-Implementation' do |ss|
       ss.header_mappings_dir = '.'
+
+      ss.dependency "#{s.name}/Interface", version
+      ss.dependency "#{s.name}/Implementation", version
+      ss.dependency "#{s.name}/Cronet-Interface", version
+
       ss.source_files = 'src/core/ext/transport/cronet/client/secure/cronet_channel_create.c',
-                        'src/core/ext/transport/cronet/transport/cronet_transport.c'
+                        'src/core/ext/transport/cronet/transport/cronet_transport.c',
+                        'third_party/Cronet/bidirectional_stream_c.h'
     end
 
     s.subspec 'Tests' do |ss|
       ss.header_mappings_dir = '.'
 
+      ss.dependency "#{s.name}/Interface", version
+      ss.dependency "#{s.name}/Implementation", version
+
       ss.source_files = 'test/core/end2end/cq_verifier.{c,h}',
                         'test/core/end2end/end2end_tests.{c,h}',
                         'test/core/end2end/end2end_test_utils.c',
@@ -182,7 +191,5 @@
                         'test/core/util/port.h',
                         'test/core/util/port_posix.c',
                         'test/core/util/port_server_client.{c,h}'
-
-      ss.dependency 'CronetFramework'
     end
   end